Height adjusting device for cutter head of mowing machine

Abstract

The utility model discloses a height adjusting device for a cutter head of a mower, which can directly adjust a lifting structure at a convenient position through an upper knob directly arranged at a handle rod, can finally adjust the height of the cutter head through the lifting structure, and is more flexible in the actual use process. And the cutter head can be moved outwards through the left-right moving mechanism so that the cutter head can be overhauled or replaced conveniently, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a lawn mower cutter head height adjusting device. Background Art

[0002] As the name implies, a lawn mower plays a role in trimming lawns in gardens. Currently, the most common ones are push lawn mowers, which use a mechanical structure to drive a cutter head equipped with several blades to rotate and trim the grass passing by.

[0003] The existing cutter heads of lawn mowers are often assembled through rigid connections or direct suspensions, unable to be flexibly adjusted according to different needs, and this method is also very inconvenient for disassembling the cutter head, making it inconvenient for maintenance and replacement. Content of the Utility Model

[0004] In view of the problems existing in the prior art, the utility model discloses a lawn mower cutter head height adjusting device. The technical solution adopted is as follows: it includes a lawn mower moving platform, moving wheels, a handle and a handle rod, a central through groove, a lifting structure, an upper block, upper wing plates, a mounting shaft, a T-shaped rod, a left and right moving mechanism, a rotating motor and a cutter head. Moving wheels are arranged on the front and rear sides of the lawn mower moving platform, a handle is fixed on the left side above, and a horizontal handle rod is fixed at the upper end of the handle. All of the above are common structures of lawn mowers. A central through groove is opened in the middle of the lawn mower moving platform, and a lifting structure is arranged on the lawn mower moving platform. The upper block is cooperatively installed with the lifting structure through the upper wing plates integrally formed on its front and rear sides. The upper block can be lifted and lowered through the lifting structure. A left and right moving mechanism is arranged below the lawn mower moving platform. The vertical part of the T-shaped rod passes through the central through groove and is cooperatively installed with the left and right moving mechanism below. The output end of the rotating motor is installed with the cutter head, and the rotating motor is powered by a storage battery. A through hole is opened in the vertical direction of the T-shaped rod. One end of the mounting shaft passes through the through hole to the lower part of the T-shaped rod and fixes the rotating motor at its lower end, and its upper end is fixedly connected to the upper block. The moving wheels are large-sized pneumatic tires. When the upper block moves up and down under the action of the lifting structure, the height of the rotating motor can be changed through the connection of the mounting shaft, thereby adjusting the height of the cutter head. Under the action of the left and right moving mechanism, the T-shaped rod can be moved outwards, which is convenient for the maintenance, repair and replacement of the cutter head.

[0005] As a preferred technical solution of the present utility model, the lifting structure includes a lifting guide shaft, a lifting screw, an upper knob, a front-back fitting rod, a connecting rod, and a middle chute. Two lifting guide shafts are fixed on the right side of the moving table of the lawn mower, and the lifting screw is rotatably installed in the middle on the left side. The upper part of the lifting screw is fixed with an upper knob. There are two front-back fitting rods. The front-back fitting rod on the left side is fitted with the lifting screw, and the lifting screw on the right side is movably sleeved on the lifting guide shaft. The two front-back fitting rods on the left and right sides are fixedly connected by two connecting rods. A middle chute is opened in the middle of the connecting rod, and the upper wing plate is placed in the middle chute in a matching manner. The two connecting rods move up and down as the front-back fitting rod rises and falls, and the upper wing plate in the middle chute can also lift together with it, thereby driving the lifting of the upper block.

[0006] As a preferred technical solution of the present utility model, the outer wall of the upper knob has anti-slip grooves.

[0007] As a preferred technical solution of the present utility model, the left-right moving mechanism includes a T-shaped rod wing plate, a side wall groove, a moving lead screw, a driving knob, and a fixed shaft. T-shaped rod side wall grooves are opened on the inner side walls of the grooves on the lower surface of the moving table of the lawn mower. Moving lead screws are rotatably installed in the two T-shaped rod side wall grooves respectively, and a fixed shaft is fixedly installed. The moving lead screw is driven by the driving knob. T-shaped rod wing plates are integrally formed on the front and rear sides at the lower end of the T-shaped rod. The ends of the two T-shaped rod wing plates are located in the side wall groove. One T-shaped rod wing plate is fitted with the moving lead screw, and the other T-shaped rod wing plate is movably sleeved on the fixed shaft.

[0008] As a preferred technical solution of the present utility model, an installation protrusion is integrally formed on the right side of the handle rod, and the non-threaded part of the upper part of the lifting screw passes through the through hole in the installation protrusion.

[0009] The beneficial effects of the present utility model: The upper knob directly arranged at the handle rod can adjust the lifting structure at a more convenient position. Through the lifting structure, the height of the cutter head can be finally adjusted, which is more flexible in the actual use process. Through the left-right moving mechanism, the position of the cutter head can be moved outwards to facilitate its maintenance or replacement, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is a schematic left-side structural diagram of the present utility model;

[0012] Figure 3 is a schematic bottom-view structural diagram of the present utility model.

[0013] In the figure: lawn mower mobile platform 1, mobile wheels 2, handle 3, handle rod 4, middle through groove 5, lifting guide shaft 6, lifting screw 7, upper knob 8, front-back mounting rod 9, connecting rod 10, middle chute 11, upper block 12, upper wing plate 13, mounting shaft 14, T-shaped rod 15, T-shaped rod wing plate 151, side wall groove 16, moving lead screw 17, drive button 18, fixed shaft 19, rotating motor 20, cutter disc 21. Detailed implementation

[0014] Embodiment 1

[0015] As Figures 1 to 3 shown, the present utility model discloses a height adjustment device for a lawn mower cutter disc. The technical solution adopted is as follows: it includes a lawn mower mobile platform 1, mobile wheels 2, a handle 3, a handle rod 4, a middle through groove 5, a lifting structure, an upper block 12, an upper wing plate 13, a mounting shaft 14, a T-shaped rod 15, a left-right moving mechanism, a rotating motor 20 and a cutter disc 21. Mobile wheels 2 are arranged on the front and rear sides of the lawn mower mobile platform 1, a handle 3 is fixed on the left side above, a horizontal handle rod 4 is fixed at the upper end of the handle 3, a middle through groove 5 is opened in the middle of the lawn mower mobile platform 1, a lifting structure is arranged on the lawn mower mobile platform 1, the upper block 12 is installed in cooperation with the lifting structure through the upper wing plates 13 integrally formed on its front and rear sides, a left-right moving mechanism is arranged below the lawn mower mobile platform 1, the vertical part of the T-shaped rod 15 passes through the middle through groove 5 and is installed in cooperation with the left-right moving mechanism below, the output end of the rotating motor 20 is installed with the cutter disc 21, the rotating motor 20 is powered by a storage battery, a through hole is opened in the vertical direction of the T-shaped rod 15, one end of the mounting shaft 14 passes through the through hole to the lower part of the T-shaped rod 15 and fixes the rotating motor 20 at its lower end, and its upper end is fixedly connected to the upper block 12. The mobile wheels 2 are large-sized pneumatic tires.

[0016] As a preferred technical solution of the present utility model, the specific setting mode of the lifting structure is as follows: two lifting guide shafts 6 are fixed on the right side of the lawn mower mobile platform 1, a lifting screw 7 is rotatably installed in the middle on the left side, an upper knob 8 is fixed at its top, there are two front-back mounting rods 9, the front-back mounting rod 9 on the left side is installed in cooperation with the lifting screw 7, the lifting screw 7 on the right side is movably sleeved with the lifting guide shaft 6, and the front-back mounting rods 9 on the left and right sides are fixedly connected by two connecting rods 10. A middle chute 11 is opened in the middle of the connecting rod 10, and the upper wing plate 13 is placed in the middle chute 11 in cooperation.

[0017] As a preferred technical solution of the present utility model, the outer wall of the upper knob 8 has anti-slip grooves, which is convenient for its operation.

[0018] As a preferred technical solution of the present utility model, the setting of the left and right moving mechanism can facilitate the maintenance and replacement of the cutter head. Its specific structure includes a T-shaped rod wing plate 151, a side wall groove 16, a moving lead screw 17, a driving knob 18 and a fixed shaft 19. The inner side walls of the lower surface grooves of the lawn mower moving platform 1 are provided with T-shaped rod side wall grooves 16. The moving lead screws 17 are respectively rotatably installed in the two T-shaped rod side wall grooves 16, and the fixed shaft 19 is fixedly installed. The moving lead screw 17 is driven by the driving knob 18. The front and rear sides of the lower end of the T-shaped rod 15 are integrally formed with T-shaped rod wing plates 151. The ends of the two T-shaped rod wing plates 151 are located in the side wall groove 16. One T-shaped rod wing plate 151 is cooperatively installed with the moving lead screw 17, and the other T-shaped rod wing plate 151 is movably sleeved on the fixed shaft 19.

[0019] As a preferred technical solution of the present utility model, an installation protrusion 41 is integrally formed on the right side of the handle rod 4, and the non-threaded part of the upper part of the lifting stud 7 passes through the through hole provided on the installation protrusion 41.

[0020] The working principle of the present utility model: When in use, according to the actual usage situation, the upper knob 8 is rotated to drive the lifting stud 7 to rotate, so that the front and rear fitting rods 9 cooperatively installed with it move up and down, thereby driving the wing plate 13 and the upper block 12 placed in the middle chute 11 to lift. Under the connection of the installation shaft 14, the height change of the rotating motor and the cutter head 21 can be driven to complete the height adjustment of the cutter head. The driving knob 18 drives the rotation of the moving lead screw 17 by manual rotation to change the position of the T-shaped rod 15, and the position of the cutter head can be moved outwards, which is convenient for maintaining the cutter head 21 or replacing the blade. This process is very convenient to operate.

[0021] The components not described in detail in this article are prior art.

[0022] Although the specific embodiments of the present utility model are described in detail above, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model, and the modifications or deformations without creative labor are still within the protection scope of the present utility model.

Claims

1. A lawn mower blade height adjustment device, comprising a lawn mower moving platform (1), a moving wheel (2), a handle (3) and a handle bar (4), characterized in that: The lawn mower mobile platform (1) comprises a central through-groove (5), a lifting structure, an upper block (12), an upper wing plate (13), a mounting shaft (14), a T-shaped rod (15), a left-right moving mechanism, a rotating motor (20) and a cutter disc (21); the front and rear sides of the lawn mower mobile platform (1) are provided with moving wheels (2), a handle (3) is fixed on the left side of the upper side, and a horizontal handle bar (4) is fixed on the upper end of the handle (3); the lawn mower mobile platform (1) has a central through-groove (5) in the middle; the lawn mower mobile platform (1) is provided with a lifting structure, the upper block (12) is formed with an upper wing plate (13) integrally formed on the front and rear sides thereof, and the upper wing plate (14) is integrally formed on the upper block (12) and the upper wing plate (13 ... 13) is installed in cooperation with the lifting structure; a left-right moving mechanism is arranged below the lawn mower moving platform (1), and the vertical part of the T-bar (15) passes through the middle through slot (5) and is installed below in cooperation with the left-right moving mechanism; a cutter disc (21) is installed at the output end of the rotating motor (20); the rotating motor (20) is powered by a battery; a through hole is opened in the vertical direction of the T-bar (15), one end of the mounting shaft (14) passes through the through hole to the bottom of the T-bar (15) and fixes the rotating motor (20) at its lower end, and its upper end is fixedly connected to the upper block (12).

2. A lawn mower blade height adjustment device according to claim 1, characterized in that: The moving wheels (2) are large-sized pneumatic tires.

3. The lawn mower blade height adjustment device according to claim 1, characterized in that: The lifting structure comprises a lifting guide shaft (6), a lifting stud (7), an upper knob (8), a front-to-back mounting rod (9), a connecting rod (10) and a middle slide groove (11); two lifting guide shafts (6) are fixed on the right side of the lawn mower moving platform (1), and a lifting stud (7) is rotatably mounted in the middle of the left side, and an upper knob (8) is fixed on the top; there are two front-to-back mounting rods (9), the front-to-back mounting rod (9) on the left side is mounted in cooperation with the lifting stud (7), and the lifting stud (7) on the right side is movably mounted on the lifting guide shaft (6), and the front-to-back mounting rods (9) on the left and right sides are fixedly connected by two connecting rods (10); a middle slide groove (11) is opened in the middle of the connecting rod (10); and the upper wing plate (13) is placed in the middle slide groove (11).

4. The lawn mower blade height adjustment device according to claim 3, characterized in that: The outer wall of the upper knob (8) is provided with an anti-slip groove.

5. The lawn mower blade height adjustment device according to claim 1, characterized in that: The left-right moving mechanism comprises a T-shaped rod wing plate (151), a side wall groove (16), a movable lead screw (17), a driving button (18) and a fixed shaft (19); the inner side wall of the groove on the lower surface of the lawn mower moving platform (1) is provided with a T-shaped rod side wall groove (16); the movable lead screws (17) are rotatably installed in the two T-shaped rod side wall grooves (16) respectively, and the fixed shaft (19) is fixedly installed; the movable lead screw (17) is driven by the driving button (18); the front and rear sides of the lower end of the T-shaped rod (15) are integrally formed with a T-shaped rod wing plate (151); the ends of the two T-shaped rod wing plates (151) are located in the side wall groove (16); one T-shaped rod wing plate (151) is installed in cooperation with the movable lead screw (17), and the other T-shaped rod wing plate (151) is movably fitted with the fixed shaft (19).

6. The lawn mower blade height adjustment device according to claim 3, characterized in that: The right side of the handle bar (4) is integrally formed with a mounting protrusion (41), and the upper portion of the lifting stud (7) which is not threaded passes through a through hole provided on the mounting protrusion (41).

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